Physics- vibrations and waves Exam | Questions And Answers Latest {2024-
2025} A+ Graded | 100% Verified
what determines the period of a pendulum? - length and amplitude
what is the source of all waves? - any vibrating object
wave motion def - goes from equilibrium to place to place
how does a wave transfer energy? - to a vibrating source. Distant receiver. no transfer of matter.
what happens to wavelength with higher frequency? - the wavelength decreases
give 2 examples of a transverse wave - vibration on strings. Ripples on H2O. electromagnetic
give 2 examples of longitudinal waves - sound waves, seismic waves
what causes interference patterns? - when waves from diff sources arrive at the same point and time.
Increase, decrease and neutralized
how does a standing wave occur? - by shaking something just right; original and reflective waves
Is it possible for one wave to cancel another wave so that the combined amplitude is zero? - yes.
complete destructive interference
at what wavelength can a standing wave form in a vibrating medium? - if half a wavelength or a multiple
of 1/2 a wavelength fits exactly into the length of the vibrating medium
how does the frequency of waves change as a wave source moves? - as wave sources approach, waves
have higher frequency
, when a source moves towards you, do you measure an increase or decrease in wave speed? - increase
what causes a bow wave? - a wave source moving faster than the wave it produces
what causes a shock wave? - an object moving faster than the speed of sound
define harmonic motion - any motion that is repetitive and is caused by a restoring force
define restoring force - tries to return an object to equilibrium
define linear motion - goes from here to there; one direction
harmonic or linear?
1. person running
2. the moon
3. clock pendulum
4. ocean waves
5. a swing
6. a moving car
7. jumping jacks
8. moving bicycle
9. music
10. flying bird
11. bouncing spring
12. a radio wave - 1. L
2.H
3. H
4. H
5. H
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